3-Close unnecessary programs from Autostart

some of programs you installed on your computer doesn’t necessary start when vista start it doesn’t affect on performance of windows vista and it slow down vista start little bit

open start then Run type msconfig then click ok
choose the startup tab under system configuration window

uncheck the programs that you don’t want it to run on vista startup

Example for these programs
instant messenger programs (i.e msn, yahoo, skepe)
Downloads manager programs